Sidebar polish: search copy, dividers, project reorder, fix DnD (#8568)

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

ui/goose2/src-tauri/src/commands/projects.rs

@@ -384,6 +384,20 @@ pub fn delete_project(id: String) -> Result<(), String> {
     Ok(())
 }
 
+#[tauri::command]
+pub fn reorder_projects(order: Vec<(String, i32)>) -> Result<(), String> {
+    for (id, new_order) in order {
+        let (dir, mut stored) = find_project_by_id(&id)?;
+        stored.order = new_order;
+        let project_path = dir.join("project.json");
+        let json = serde_json::to_string_pretty(&stored)
+            .map_err(|e| format!("Failed to serialize project: {}", e))?;
+        fs::write(&project_path, json)
+            .map_err(|e| format!("Failed to write project.json: {}", e))?;
+    }
+    Ok(())
+}
+
 #[tauri::command]
 pub fn get_project(id: String) -> Result<ProjectInfo, String> {
     let (dir, info) = find_project_by_id(&id)?;

ui/goose2/src-tauri/src/lib.rs

@@ -73,6 +73,7 @@ pub fn run() {
             commands::projects::update_project,
             commands::projects::delete_project,
             commands::projects::get_project,
+            commands::projects::reorder_projects,
             commands::projects::list_archived_projects,
             commands::projects::archive_project,
             commands::projects::restore_project,